forked from zelo72/mastodon-ios
343 lines
14 KiB
Swift
343 lines
14 KiB
Swift
//
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// PickServerCell.swift
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// Mastodon
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//
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// Created by BradGao on 2021/2/24.
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//
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import os.log
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import UIKit
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import Combine
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import MastodonSDK
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import AlamofireImage
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import Kanna
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protocol PickServerCellDelegate: AnyObject {
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func pickServerCell(_ cell: PickServerCell, expandButtonPressed button: UIButton)
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}
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class PickServerCell: UITableViewCell {
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weak var delegate: PickServerCellDelegate?
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var disposeBag = Set<AnyCancellable>()
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let expandMode = CurrentValueSubject<ExpandMode, Never>(.collapse)
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let containerView: UIView = {
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let view = UIView()
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view.layoutMargins = UIEdgeInsets(top: 16, left: 16, bottom: 10, right: 16)
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view.backgroundColor = Asset.Colors.Background.secondaryGroupedSystemBackground.color
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view.translatesAutoresizingMaskIntoConstraints = false
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return view
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}()
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let domainLabel: UILabel = {
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let label = UILabel()
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label.font = .preferredFont(forTextStyle: .headline)
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label.textColor = Asset.Colors.Label.primary.color
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let checkbox: UIImageView = {
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let imageView = UIImageView()
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imageView.preferredSymbolConfiguration = UIImage.SymbolConfiguration(textStyle: .body)
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imageView.tintColor = Asset.Colors.Label.secondary.color
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imageView.contentMode = .scaleAspectFill
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imageView.translatesAutoresizingMaskIntoConstraints = false
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return imageView
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}()
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let descriptionLabel: UILabel = {
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let label = UILabel()
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label.font = .preferredFont(forTextStyle: .subheadline)
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label.numberOfLines = 0
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label.textColor = Asset.Colors.Label.primary.color
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let thumbnailActivityIdicator = UIActivityIndicatorView(style: .medium)
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let thumbnailImageView: UIImageView = {
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let imageView = UIImageView()
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imageView.clipsToBounds = true
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imageView.contentMode = .scaleAspectFill
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imageView.translatesAutoresizingMaskIntoConstraints = false
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return imageView
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}()
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let infoStackView: UIStackView = {
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let stackView = UIStackView()
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stackView.axis = .horizontal
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stackView.alignment = .fill
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stackView.distribution = .fillEqually
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stackView.translatesAutoresizingMaskIntoConstraints = false
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return stackView
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}()
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let expandBox: UIView = {
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let view = UIView()
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view.backgroundColor = .clear
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view.translatesAutoresizingMaskIntoConstraints = false
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return view
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}()
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let expandButton: UIButton = {
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let button = UIButton(type: .custom)
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button.setTitle(L10n.Scene.ServerPicker.Button.seeMore, for: .normal)
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button.setTitle(L10n.Scene.ServerPicker.Button.seeLess, for: .selected)
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button.setTitleColor(Asset.Colors.brandBlue.color, for: .normal)
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button.titleLabel?.font = .preferredFont(forTextStyle: .footnote)
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button.translatesAutoresizingMaskIntoConstraints = false
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return button
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}()
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let seperator: UIView = {
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let view = UIView()
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view.backgroundColor = Asset.Colors.Background.systemGroupedBackground.color
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view.translatesAutoresizingMaskIntoConstraints = false
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return view
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}()
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let langValueLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = UIFontMetrics(forTextStyle: .title2).scaledFont(for: UIFont.systemFont(ofSize: 22, weight: .semibold))
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let usersValueLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = UIFontMetrics(forTextStyle: .title2).scaledFont(for: UIFont.systemFont(ofSize: 22, weight: .semibold))
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let categoryValueLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = UIFontMetrics(forTextStyle: .title2).scaledFont(for: UIFont.systemFont(ofSize: 22, weight: .semibold))
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let langTitleLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = .preferredFont(forTextStyle: .caption2)
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label.text = L10n.Scene.ServerPicker.Label.language
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let usersTitleLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = .preferredFont(forTextStyle: .caption2)
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label.text = L10n.Scene.ServerPicker.Label.users
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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let categoryTitleLabel: UILabel = {
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let label = UILabel()
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label.textColor = Asset.Colors.Label.primary.color
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label.font = .preferredFont(forTextStyle: .caption2)
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label.text = L10n.Scene.ServerPicker.Label.category
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label.textAlignment = .center
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label.adjustsFontForContentSizeCategory = true
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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private var collapseConstraints: [NSLayoutConstraint] = []
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private var expandConstraints: [NSLayoutConstraint] = []
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override func prepareForReuse() {
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super.prepareForReuse()
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thumbnailImageView.isHidden = false
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thumbnailImageView.af.cancelImageRequest()
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thumbnailActivityIdicator.stopAnimating()
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disposeBag.removeAll()
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}
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override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
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super.init(style: style, reuseIdentifier: reuseIdentifier)
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_init()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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_init()
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}
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}
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// MARK: - Methods to configure appearance
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extension PickServerCell {
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private func _init() {
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selectionStyle = .none
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backgroundColor = .clear
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contentView.addSubview(containerView)
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containerView.addSubview(domainLabel)
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containerView.addSubview(checkbox)
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containerView.addSubview(descriptionLabel)
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containerView.addSubview(seperator)
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containerView.addSubview(expandButton)
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// Always add the expandbox which contains elements only visible in expand mode
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containerView.addSubview(expandBox)
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expandBox.addSubview(thumbnailImageView)
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expandBox.addSubview(infoStackView)
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expandBox.isHidden = true
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let verticalInfoStackViewLang = makeVerticalInfoStackView(arrangedView: langValueLabel, langTitleLabel)
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let verticalInfoStackViewUsers = makeVerticalInfoStackView(arrangedView: usersValueLabel, usersTitleLabel)
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let verticalInfoStackViewCategory = makeVerticalInfoStackView(arrangedView: categoryValueLabel, categoryTitleLabel)
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infoStackView.addArrangedSubview(verticalInfoStackViewLang)
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infoStackView.addArrangedSubview(verticalInfoStackViewUsers)
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infoStackView.addArrangedSubview(verticalInfoStackViewCategory)
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let expandButtonTopConstraintInCollapse = expandButton.topAnchor.constraint(equalTo: descriptionLabel.lastBaselineAnchor, constant: 12).priority(.required - 1)
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collapseConstraints.append(expandButtonTopConstraintInCollapse)
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let expandButtonTopConstraintInExpand = expandButton.topAnchor.constraint(equalTo: expandBox.bottomAnchor, constant: 8).priority(.defaultHigh)
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expandConstraints.append(expandButtonTopConstraintInExpand)
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NSLayoutConstraint.activate([
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// Set background view
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containerView.topAnchor.constraint(equalTo: contentView.topAnchor),
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containerView.leadingAnchor.constraint(equalTo: contentView.readableContentGuide.leadingAnchor),
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contentView.readableContentGuide.trailingAnchor.constraint(equalTo: containerView.trailingAnchor),
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contentView.bottomAnchor.constraint(equalTo: containerView.bottomAnchor, constant: 1),
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// Set bottom separator
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seperator.leadingAnchor.constraint(equalTo: containerView.leadingAnchor),
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containerView.trailingAnchor.constraint(equalTo: seperator.trailingAnchor),
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containerView.topAnchor.constraint(equalTo: seperator.topAnchor),
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seperator.heightAnchor.constraint(equalToConstant: 1).priority(.defaultHigh),
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domainLabel.topAnchor.constraint(equalTo: containerView.layoutMarginsGuide.topAnchor),
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domainLabel.leadingAnchor.constraint(equalTo: containerView.layoutMarginsGuide.leadingAnchor),
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checkbox.widthAnchor.constraint(equalToConstant: 23),
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checkbox.heightAnchor.constraint(equalToConstant: 22),
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containerView.layoutMarginsGuide.trailingAnchor.constraint(equalTo: checkbox.trailingAnchor),
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checkbox.leadingAnchor.constraint(equalTo: domainLabel.trailingAnchor, constant: 16),
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checkbox.centerYAnchor.constraint(equalTo: domainLabel.centerYAnchor),
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descriptionLabel.leadingAnchor.constraint(equalTo: containerView.layoutMarginsGuide.leadingAnchor),
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descriptionLabel.topAnchor.constraint(equalTo: domainLabel.bottomAnchor, constant: 8),
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containerView.layoutMarginsGuide.trailingAnchor.constraint(equalTo: descriptionLabel.trailingAnchor),
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// Set expandBox constraints
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expandBox.leadingAnchor.constraint(equalTo: containerView.layoutMarginsGuide.leadingAnchor),
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containerView.layoutMarginsGuide.trailingAnchor.constraint(equalTo: expandBox.trailingAnchor),
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expandBox.topAnchor.constraint(equalTo: descriptionLabel.bottomAnchor, constant: 8),
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expandBox.bottomAnchor.constraint(equalTo: infoStackView.bottomAnchor).priority(.defaultHigh),
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thumbnailImageView.topAnchor.constraint(equalTo: expandBox.topAnchor),
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thumbnailImageView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor),
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expandBox.trailingAnchor.constraint(equalTo: thumbnailImageView.trailingAnchor),
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thumbnailImageView.heightAnchor.constraint(equalTo: thumbnailImageView.widthAnchor, multiplier: 151.0 / 303.0).priority(.defaultHigh),
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infoStackView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor),
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expandBox.trailingAnchor.constraint(equalTo: infoStackView.trailingAnchor),
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infoStackView.topAnchor.constraint(equalTo: thumbnailImageView.bottomAnchor, constant: 16),
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expandButton.leadingAnchor.constraint(equalTo: containerView.layoutMarginsGuide.leadingAnchor),
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containerView.layoutMarginsGuide.trailingAnchor.constraint(equalTo: expandButton.trailingAnchor),
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containerView.layoutMarginsGuide.bottomAnchor.constraint(equalTo: expandButton.bottomAnchor),
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])
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thumbnailActivityIdicator.translatesAutoresizingMaskIntoConstraints = false
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thumbnailImageView.addSubview(thumbnailActivityIdicator)
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NSLayoutConstraint.activate([
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thumbnailActivityIdicator.centerXAnchor.constraint(equalTo: thumbnailImageView.centerXAnchor),
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thumbnailActivityIdicator.centerYAnchor.constraint(equalTo: thumbnailImageView.centerYAnchor),
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])
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thumbnailActivityIdicator.hidesWhenStopped = true
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thumbnailActivityIdicator.stopAnimating()
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NSLayoutConstraint.activate(collapseConstraints)
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domainLabel.setContentHuggingPriority(.required - 1, for: .vertical)
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domainLabel.setContentCompressionResistancePriority(.required - 1, for: .vertical)
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descriptionLabel.setContentHuggingPriority(.required - 2, for: .vertical)
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descriptionLabel.setContentCompressionResistancePriority(.required - 2, for: .vertical)
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expandButton.addTarget(self, action: #selector(expandButtonDidPressed(_:)), for: .touchUpInside)
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}
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private func makeVerticalInfoStackView(arrangedView: UIView...) -> UIStackView {
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let stackView = UIStackView()
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stackView.translatesAutoresizingMaskIntoConstraints = false
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stackView.axis = .vertical
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stackView.alignment = .center
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stackView.distribution = .equalCentering
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stackView.spacing = 2
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arrangedView.forEach { stackView.addArrangedSubview($0) }
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return stackView
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}
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override func setSelected(_ selected: Bool, animated: Bool) {
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super.setSelected(selected, animated: animated)
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if selected {
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checkbox.image = UIImage(systemName: "checkmark.circle.fill")
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} else {
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checkbox.image = UIImage(systemName: "circle")
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}
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}
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@objc
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private func expandButtonDidPressed(_ sender: UIButton) {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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delegate?.pickServerCell(self, expandButtonPressed: sender)
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}
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}
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extension PickServerCell {
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enum ExpandMode {
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case collapse
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case expand
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}
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func updateExpandMode(mode: ExpandMode) {
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switch mode {
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case .collapse:
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expandBox.isHidden = true
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expandButton.isSelected = false
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NSLayoutConstraint.deactivate(expandConstraints)
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NSLayoutConstraint.activate(collapseConstraints)
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case .expand:
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expandBox.isHidden = false
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expandButton.isSelected = true
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NSLayoutConstraint.activate(expandConstraints)
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NSLayoutConstraint.deactivate(collapseConstraints)
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}
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expandMode.value = mode
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}
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}
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